WORLD CIVILIZATION

Detailed explanation-1: -Barrel Vault: Also called the tunnel vault, or Roman vault because of its heavy use in Ancient Rome, a barrel vault is constructed with a rounded arched ceiling that gives the appearance of a tunnel.

Detailed explanation-2: -Arch are structurally very stable in compression, as loads are relatively evenly balanced through their form. A vault is a structural form composed of a series of arches, typically found in the construction of ceilings or roofs.

Detailed explanation-3: -Some designers use the terms “vaulted ceilings” and “cathedral ceilings” interchangeably, but there is a technical difference: A cathedral ceiling is typically not arched, instead following the pitch of the roof, while a vaulted ceiling incorporates an arch design within the triangular pitch of the roof.

Detailed explanation-4: -A barrel vault (also called a cradle vault, tunnel vault, or wagon vault) has a semicircular cross section. A groin (or cross) vault is formed by the perpendicular intersection of two barrel vaults. A rib (or ribbed) vault is supported by a series of arched diagonal ribs that divide the vault’s surface into panels.